TY - CONF
T1 - Experimental study on the reinforced concrete pile-cap with a pile, exterior column and foundation beam
AU - Kishida, Shinji
AU - Mukai, Tomohisa
N1 - Funding Information:
This work was supported by JSPS KAKENHI Grant Number JP23560679 and Grant-in-Aid for Scientific Research(A) JSPS KAKENHI Grant Numbers JP26242035(Research Representative: Tomohisa Mukai). This experiment was carried out in Large Scale Structure Testing Laboratory of TOKYO Metropolitan University and in Structural Lab. at BRI, too. Authors would like to express their gratitude to Japan PILE Co., Ltd. for providing steel piles, Neturen Co., Ltd. and TOKYO TEKKO CO., Ltd. for providing steel bars, Dr. KITAYAMA K., professor of Tokyo Metropolitan University, for their assistance in conducting the tests. We are deeply grateful to them.
Funding Information:
This work was supported by JSPS KAKENHI Grant Number JP23560679 and Grant-in-Aid for Scientific Research(A) JSPS KAKENHI Grant Numbers JP26242035(Research Representative: Tomohisa Mukai). This experiment was carried out in Large Scale Structure Testing Laboratory of TOKYO Metropolitan University and in Structural Lab. at BRI, too. Authors would like to express their gratitude to JAPAN PILE Co., Ltd. for providing steel piles, Neturen Co., Ltd. and TOKYO TEKKO CO., Ltd. for providing steel bars, Dr. KITAYAMA K., professor of Tokyo Metropolitan University, for their assistance in conducting the tests. We are deeply grateful to them.
PY - 2019
Y1 - 2019
N2 - Recently, the shear failure mechanism of a pile, exterior column-beam pile-cap in Reinforced Concrete (RC) structure is not resolved yet under bi-lateral loading. This report is a series study of grasping the seismic capacity of interior pile-caps, these specimens were carried out to investigate the pile-caps shear performance. The specimens were previously tested in references. The specimens which were the exterior subassemblages of a precast pile, foundation beam and column, were half scale to actual frames. In this experimental study, fourteen specimens were fabricated which can be divided into some types considering the arrangement properties. The ultimate shear strength can be estimated by the prediction method for usual RC beam-column joints [reference 1] to apply the vertical member section to the average between the pile, the column and the pile-cap section or that between column and pile-cap. The shear strength of pile-caps was enhanced by confining effect due to the shear reinforcement amount and the transformation of the surrounding structural members were restrained by them. The difference in the positive and negative maximum strength was occurred by the strut mechanism in loading direction. Finally, the new design formulas have been proposed.
AB - Recently, the shear failure mechanism of a pile, exterior column-beam pile-cap in Reinforced Concrete (RC) structure is not resolved yet under bi-lateral loading. This report is a series study of grasping the seismic capacity of interior pile-caps, these specimens were carried out to investigate the pile-caps shear performance. The specimens were previously tested in references. The specimens which were the exterior subassemblages of a precast pile, foundation beam and column, were half scale to actual frames. In this experimental study, fourteen specimens were fabricated which can be divided into some types considering the arrangement properties. The ultimate shear strength can be estimated by the prediction method for usual RC beam-column joints [reference 1] to apply the vertical member section to the average between the pile, the column and the pile-cap section or that between column and pile-cap. The shear strength of pile-caps was enhanced by confining effect due to the shear reinforcement amount and the transformation of the surrounding structural members were restrained by them. The difference in the positive and negative maximum strength was occurred by the strut mechanism in loading direction. Finally, the new design formulas have been proposed.
KW - Calculation of ultimate shear strength
KW - Exterior subassembladge
KW - Functional-use
KW - Pile-cap
KW - Precast pile
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M3 - Paper
AN - SCOPUS:85081081604
SP - 2229
EP - 2242
T2 - 5th fib Congress, FIB 2018
Y2 - 7 October 2018 through 11 October 2018
ER -